It was the perfect storm: three Model S fires in six weeks were enough for the National Highway Traffic Safety Administration (NHTSA) to start an investigation into the two US fires in mid-November, but as it turns out, the German government was paying attention too. According to Tesla, Germany's Kraftfahrt-Bundesamt (KBA), or Federal Motor Transport Authority, already has completed an investigation into the two US fires and the one in Mexico, found no manufacturer-related defects and will not take further measures.

According to a statement issued by Tesla, the automaker says it was contacted by the KBA about the post-crash fires, and it "provided the KBA with data and additional information regarding each of these incidents." The KBA subsequently sent a letter in German to Tesla saying the investigation was complete and that no manufacturer-related defects could be found. (Take a look at the letter here.)

PALO ALTO, Calif. – Tesla received a recent inquiry from the German Federal Motor Transport Authority, Kraftfahrt-Bundesamt (KBA), regarding the Model S post-crash fire incidents in Seattle, Tennessee and Mexico. The KBA is the German authority in charge of motor vehicle regulation. They have the power to initiate and perform investigations, and compel recalls. In response, Tesla provided the KBA with data and additional information regarding each of these incidents.

In investigating these incidents, the KBA reviewed Tesla's responses to their inquiries, as well as other information. They subsequently issued the following statement:

According to the documents, no manufacturer-related defects [herstellerseitiger Mangel] could be found. Therefore, no further measures under the German Product Safety Act [Produktsicherheitsgesetz (ProdSG)] are deemed necessary.

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Daimler owns a small percentage of Tesla. They sold 40% of their holdings back before the stock went crazy. That was a big oops. Though they did make a truckload of money from their initial investment of $50 million.

Gasoline burns/explodes when subjected to a spark or flame. Batteries conversely burns/explodes when short-circuited. The reason simply is the maths of batteries whereby E=I^2xR; viz. in event of a short-circuit when R=0, I^2=infinity. Battery cars obviously works best with “high” voltage, maybe 100/200/300/400/500V to minimize I/I^2, the current and current squared conversely. High voltage (viz. all the cells wired in series) however potentially generates the spark that creates the short-circuit that leads to I^2=infinity. So proverbly if there is a tiger in the (gasoline) tank there is a (demon) I the battery charge. Simple as that!!

Mm, no, you just wrote the formula for power, not energy, and the potential difference between any to or 10 batteries is not 400V, but between 3.7 and 37V, 400V is the difference between the first and the last battery in the series arrangement. There is no spark due to high voltages, batteries burn because of the heat generated by the high current. Every battery has an internal resistance which is never 0, if it was zero, there would be no heat generatio. Heat causes flammable electrolyte to evaporate and rupture a cell, and then a fire starts. But this has never happened in a tesla WITHOUT physical damage to the cells, when they aer compressed and cintact is made through the separator inside, which normally prevents just that.